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JPL Small-Body Database Browser
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441030 (2007 EB221)
Classification: Main-belt Asteroid          SPK-ID: 2441030
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375210088313335 6.5307e-08  
a 2.414427353363314 2.5378e-08 au
q 2.082392867978825 1.6473e-07 au
i 2.396115997883663 7.889e-06 deg
node 76.3910905595627 0.00025757 deg
peri 133.511842396522 0.00026371 deg
M 70.88234502993174 5.7567e-05 deg
tp 2458330.691754944101
(2018-Jul-31.19175494)
0.00021683 TDB
period 1370.312567665582
3.75
2.1605e-05
5.915e-08
d
yr
n .2627137840626272 4.1421e-09 deg/d
Q 2.746461838747804 2.8868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      4545 days (12.44 yr)  
   first obs. used      2007-03-13  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67648  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:41:35  

Additional Information
 Earth MOID = 1.078 au 
 Jupiter MOID = 2.21615 au 
 T_jup = 3.503 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457526.5 (2016-May-18.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1369221209028522 6.5387e-08  
q 2.084222830849209 1.6469e-07 au
tp 2456960.300390205401
(2014-Oct-29.80039021)
0.00020737 TDB
node 76.39457013011332 0.00025763 deg
peri 133.5869607444212 0.0002638 deg
i 2.396138160115481 7.8822e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      91  
   data-arc span      4545 days (12.44 yr)  
   first obs. used      2007-03-13  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67648  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:41:35  

Additional Information
 Jupiter MOID = 2.21615 au 
 T_jup = 3.503 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.275478679757767E-15 -1.06800674091479E-14 -8.030738302649697E-12 -1.720862190560558E-13 -2.177353683002753E-12 -8.27179749272681E-15
q -1.06800674091479E-14 2.712186334978672E-14 2.141427885486749E-11 4.491375547836369E-13 5.849352680563929E-12 2.17545180873198E-14
tp -8.030738302649697E-12 2.141427885486749E-11 4.300328608893787E-8 6.2066188127862E-10 1.193537359968969E-8 3.000773989104108E-11
node -1.720862190560558E-13 4.491375547836369E-13 6.2066188127862E-10 6.637170957561888E-8 -6.613270711836875E-8 1.12801150921662E-9
peri -2.177353683002753E-12 5.849352680563929E-12 1.193537359968969E-8 -6.613270711836875E-8 6.959199589476265E-8 -1.118197473466053E-9
i -8.27179749272681E-15 2.17545180873198E-14 3.000773989104108E-11 1.12801150921662E-9 -1.118197473466053E-9 6.212847550812965E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a E2015M05  

441030 (2007 EB221)          Discovered 2007-Mar-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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